William martin hart



(No Model.)

W. M. HART.

SELF SUPPORTING TOY DERRICK.

No. 568,975. Patented 001;. 6, 1896.

WITNESSES." I "WE/ f @A 6 2 MM 'TTORNEYS.

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UNITED STATES PATENT @FFICE.

IVILLIAM MARTIN HART, OF NE\V YORK, N. Y.

SELF-SUPPORTING TOY DERRICK.

SPECIFICATION forming part of Letters Patent No. 568,975, dated October 6, 1896.

Application filed March 4, 1896. Serial No. 581,779. (No model.)

T 0 all whmn it may concern.-

Be it known that 1, WILLIAM MARTIN HART, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Self-Supporting Toy Derricks, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof, in which similar letters of reference indicate corresponding parts.

This invention relates to toy derricks, and the object thereof is to provide an improved device of this class for use by children; and the invention consists in the construction, combination, and arrangement of parts hereinafter described and claimed.

The invention is fully disclosed in the following specification, of which the accompanying drawings form a part, in which- Figure 1 is a perspective view of my improved toy derrick, and Fig. 2 a section thereof on the line 2 2.

In the practice of my invention I provide a toy derrick in which are employed a plurality of legs or supports A, which are preferably four in number and which are connected at one end by means of a ring 13, which is passed therethrough, and the connected ends of said legs or supports are beveled out or cut away, so as to form a circular opening, as shown at O. I also employ two rods or braces D, which are adapted to be detachably connected with the alternate legs or supports A, as shown in Fig. 1, by means of hooks and eyes or similar devices, as shown at E. Passing through the circular opening 0 and pivotally connected with one of the cross bars or braces D is a vertical shaft G, provided about midway of its length with a pivoted arm II, with the opposite end and with the upper side of which is pivotally connected a pulley-block h, and a similar pulley-block 77/ is pivotally connected with the lower side of said arm at the outer end thereof. A pulleyblock 7L is also pivotally connected with the upper end of the shaft G, anda similar block 7L with said shaft below the pivotal connection of the arm II, and I also employ a loose pulley-block K.

In practice a rope L is secured to the pulley-block 72, passes around the pulley-block 771 is carried back and around a pulley-block 72, and again passed around the block h and the en thereof depends therefrom. A similar rope M is secured to the loose pulley-block K and passes around the block 71 from which it is passed around the block K and then again around the block h from which it is passed to and around the block h and the end thereof extends from said block downwardly.

The operation will be readily understood from the foregoing description when taken in connection with the accompanying drawings. \Vhenever it is desired to raise an object, said object is connected with the block K and the operator pulls upon the rope M or the free end thereof, and the outer end of the arm H may be raised or lowered at any time by pulling on the free end of the rope M. It will also be apparent that the'shaft G and the arm II may be swung around upon the pivotal support of the shaft and that the arm II may thus be caused to swing entirelyaround the base or support consisting of the legs A.

This device is intendedfor use by children in building toy houses and other's tructures and for raising blocks and other articles for such and similar purposes, and, as will be ap- A parent, the same is simple in construction and operation and well adapted to accomplish the result for which it is intended, while be ing comparatively inexpensive.

Having fully described my invention, I claim as new and desire to secure by Letters Patent 1. A toy derrick, comprising a plurality of legs or supports as A, which are connected at one end by a ring which is passed therethrough, and the connected ends of which are cut out so as to form a circular opening, said legs or supports being also provided with transverse braces or bars, and a shaft which is passed through said circular opening, and the lower end of which is pivotally connected with one of said braces or bars, said shaft being provided with an arm which is pivotally connected therewith, an d provided with two pulley-blocks at its outer end, and said shaft being also provided with two pulleyblocks one of which is connected with its upper end, and the other being connected therewith, below said arm or adjacent thereto, substantially as shown and described.

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2. A toy derrick, comprising a plurality of logs or supports as A, which are connected at one end by a ring which is passed therethrough, and the connected ends of which are out out so as to form a circular opening, said legs or supports being also provided with transverse braces or bars, and a shaft which is passed through said circular opening, and the lower end of which is pi\ *otallyconnected with one of said braces or bars, said shaft being provided with anarm which is pivotally connected therewith, and provided with two pulley-blocks at its outer end, and said shaft being also provided with two pulleyblocks one of Which is connected with its upence of the subscribing witnesses, this 3d day of March, 18-96.

WILLIAM MARTIN HART. Witnesses:

C. GERST, O. MILLIN. 

